Done in tendon

At the end of my BJJ class when we were rolling, some bloke tried to ankle lock me and my other leg splayed out, and it felt like one of the tendons or something around the side (but just above) of the knee joint. It was really sore whenever I tried to bend it or put any weight on it but now (after about an hour) it's much less sore. I'm going to see the GP tomorrow, but I'm still kind of worried, as this happened before about five months ago at judo, stood up funny and the exact same thing happened, soreness mostly went after a few hours and was gone in a few days. I'm scared it will get progressively worse.

Has anyone experienced this and have any advice or warnings about my leg? How long to wait before you do anything, if it can be treated, if it's just going to last forever, that kind of thing?

At the end of my BJJ class when we were rolling, some bloke tried to ankle lock me and my other leg splayed out, and it felt like one of the tendons or something around the side (but just above) of the knee joint. It was really sore whenever I tried to bend it or put any weight on it but now (after about an hour) it's much less sore. I'm going to see the GP tomorrow, but I'm still kind of worried, as this happened before about five months ago at judo, stood up funny and the exact same thing happened, soreness mostly went after a few hours and was gone in a few days. I'm scared it will get progressively worse.

Has anyone experienced this and have any advice or warnings about my leg? How long to wait before you do anything, if it can be treated, if it's just going to last forever, that kind of thing?

Get your GP to refer you to a specialist in sports injuries. GPs don't usually have the expertise to deal with tendon injuries around the knee. You might have to wait longer to see a specialist, but your recovery stands more chance of being complete.